1982年10月～1984年9月,我们在四川冤宁县以生产队为单位,采用整群调查方法,对迎丰(服硒盐6年),明春(1～10岁儿童服硒片7年),幸福(1～10岁儿童服硒片,坚持两年,间断4年),和平(未服硒)进行大骨节病调查,共查362人,临床阳性检出率47.2％,X线(右手正位片)阳性检出率43.1％。将上述四个点区的病情进行比较,看不出硒对大骨节病的发生有何 From October 1982 to September 1984, we used the production team as a unit in the county of Yixing County, Sichuan Province. We used the method of cluster survey to study the effects of selenium salt (6 years for selenium salt), selenium for children 1 to 10 years old Year), happiness (1 to 10 years old children served selenium tablets, insisted two years, interrupted for 4 years), peace (not served selenium) for Kashin-Beck disease survey, a total of 362 people, the positive clinical positive rate was 47.2% (Right hand positive film) positive detection rate of 43.1%. The above four points of the disease were compared, do not see the occurrence of selenium on the occurrence of Kashin-Beck disease